Circle Geometry Quiz

How many degrees are there in a circle?

• 180

• 270

• 360

• 90

If the radius of a circle is 1 unit, what is the circumference?

• 2π units

• π units

• 4π units

• 3π units

How many degrees are there in a circle?

• 180

• 360

• 270

• 90

If the radius of a circle is 1 unit, what is the circumference?

• π

• 2π

• 3π

• 4π

What is the term for a line that touches a circle at exactly one point?

• Chord

• Diameter

• Tangent

• Radius

How many degrees are there in a circle?

• 180 degrees

• 360 degrees

• 90 degrees

• 270 degrees

What is the circumference of a unit circle in radians?

• 1 radian

• 2 radians

• 3 radians

• 4 radians

To convert degrees to radians, what is the conversion factor based on?

• The radius of the circle

• The diameter of the circle

• The circumference of the circle

• The area of the circle

If 360 degrees equals 2 radians, how many radians are in 180 degrees?

• 1 radian

• 2 radians

• 0.5 radians

• 3 radians

Convert 25° to radians. Leave your answer in terms of π.